Originally posted by deliriou5
My hubs have this "gritty" kind of feel and sound when i hold them by the hub and spin them.
You can always regrease them and look for signs of wearing. If any "dents" in the cones, replace them and the balls. Be sure to adjust the cones properly. If the cups are bad you can`t do nothing what I know, just replace the hub. As for the problem with the cassette, I canīt help you. Maybe you just have to tighten it? Take it apart and clean all parts then refit. That should do it, otherwise take it to your lokal bike shop and see what they say.
Regards
Anders K